#include <stdio.h>

int add(int a, int b)
{
	return a + b;
}

int b = 10;

int mul(int a)
{
	return a * b;
}

int main(void)
{
	int result1;
	int result2;

	result1 = add(1,5);
	result2 = mul(2);

	printf("result1=%d,result2=%d\n", result1, result2);
	printf("global b=%d\n", b);

	return 0;
}
